Posture-adjustable leading edge slat

The invention belongs to the technique of the design of an airplane moving surface, and particularly relates to a posture-adjustable leading edge slat. The posture-adjustable leading edge slat comprises a reinforcing rib (1), a slide rail (2) and double eccentric bushings (3), wherein the reinforcing rib (1) is fixedly connected with double holes of the slide rail (2) through connecting lugs; the two groups of double eccentric bushings (3) are respectively arranged in outer connecting holes between the reinforcing rib (1) and the slide rail (2), and are fixed by studs (4). The posture-adjustable leading edge slat provided by the invention can adjust the posture after being installed, so that the pneumatic clearance requirement of the moving surface and a fixed surface can be ensured; meanwhile the mutual replacement requirement also can be met; the zero position of an operation system is ensured; additionally, the posture-adjustable leading edge slat is simple in structure, is convenient to adjust, and the clearance control difficulty is greatly reduced.